





UpperCAmelCase_           =	{"a": ["c", "b"], "b": ["d", "e"], "c": [], "d": [], "e": []}
UpperCAmelCase_           =	["a", "b", "c", "d", "e"]
def      A__       (    SCREAMING_SNAKE_CASE_   :      List[str]				,	SCREAMING_SNAKE_CASE_   :      str				,	SCREAMING_SNAKE_CASE_   :      str						)  ->  Any:






   """simple docstring"""







   _UpperCAmelCase           =   start
   # add current to visited
   visited.append(SCREAMING_SNAKE_CASE_						)
   _UpperCAmelCase           =   edges[current]
   for neighbor in neighbors:
      # if neighbor not in visited, visit
      if neighbor not in visited:
         _UpperCAmelCase           =   topological_sort(SCREAMING_SNAKE_CASE_				,	SCREAMING_SNAKE_CASE_				,	SCREAMING_SNAKE_CASE_						)
    # if all neighbors visited add current to sort
   sort.append(SCREAMING_SNAKE_CASE_						)
   # if all vertices haven't been visited select a new one to visit
   if len(SCREAMING_SNAKE_CASE_						) != len(SCREAMING_SNAKE_CASE_						):
      for vertice in vertices:
         if vertice not in visited:
            _UpperCAmelCase           =   topological_sort(SCREAMING_SNAKE_CASE_				,	SCREAMING_SNAKE_CASE_				,	SCREAMING_SNAKE_CASE_						)
    # return sort
   return sort


if __name__ == "__main__":
   UpperCAmelCase_           =	topological_sort("a", [], [])
   print(sort)




'''simple docstring'''






import numpy as np
def  lowerCamelCase__			(		_A							):
  return 1 / (1 + np.exp(-vector							))
def  lowerCamelCase__			(		_A							):
  return vector * sigmoid(1.702 * vector							)


if __name__ == "__main__":
     import doctest

     doctest.testmod()